EP3126209A1 - Verstärkte kraftfahrzeugstruktur - Google Patents
Verstärkte kraftfahrzeugstrukturInfo
- Publication number
- EP3126209A1 EP3126209A1 EP15717041.6A EP15717041A EP3126209A1 EP 3126209 A1 EP3126209 A1 EP 3126209A1 EP 15717041 A EP15717041 A EP 15717041A EP 3126209 A1 EP3126209 A1 EP 3126209A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bell
- spacers
- motor vehicle
- shaped suspension
- vehicle structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000725 suspension Substances 0.000 claims abstract description 55
- 125000006850 spacer group Chemical group 0.000 claims abstract description 54
- 239000002184 metal Substances 0.000 claims description 2
- 230000035939 shock Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
- B62D25/088—Details of structures as upper supports for springs or dampers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
- B62D25/082—Engine compartments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
- B62D25/082—Engine compartments
- B62D25/085—Front-end modules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D27/00—Connections between superstructure or understructure sub-units
- B62D27/02—Connections between superstructure or understructure sub-units rigid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
- F01B7/00—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders
- F01B7/20—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders with two or more pistons reciprocating one within another, e.g. one piston forming cylinder of the other
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
- F03C1/00—Reciprocating-piston liquid engines
- F03C1/007—Reciprocating-piston liquid engines with single cylinder, double-acting piston
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
- F03C1/00—Reciprocating-piston liquid engines
- F03C1/22—Reciprocating-piston liquid engines with movable cylinders or cylinder
- F03C1/24—Reciprocating-piston liquid engines with movable cylinders or cylinder in which the liquid exclusively displaces one or more pistons reciprocating in rotary cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
- F03C1/00—Reciprocating-piston liquid engines
- F03C1/22—Reciprocating-piston liquid engines with movable cylinders or cylinder
- F03C1/24—Reciprocating-piston liquid engines with movable cylinders or cylinder in which the liquid exclusively displaces one or more pistons reciprocating in rotary cylinders
- F03C1/2462—Reciprocating-piston liquid engines with movable cylinders or cylinder in which the liquid exclusively displaces one or more pistons reciprocating in rotary cylinders the rotary cylinder being provided with only one piston reciprocating within this cylinder
Definitions
- the present invention relates to a motor vehicle structure comprising an apron and two bell-shaped suspension element supports connected respectively to the deck by spacers.
- the motor vehicle structures comprise a frame and a body mounted on the frame. Also, they have a front compartment for receiving the engine when it is at the front, and a compartment separated from the front compartment by an apron. They also include two bell-shaped support elements arranged laterally inside the front compartment and near the deck. These two supports of bell-shaped suspension elements are adapted to accommodate the spring and shock absorber elements of the suspension, which is connected to the wheel shafts. In particular, the upper part of the cup-shaped supports, precisely to receive the elements spring from the support suspension.
- the frame has longitudinal members extending longitudinally beneath the front compartment between the suspension member supports.
- the longitudinal members are mechanically connected to the support of suspension elements.
- the apron has a rigid cross member and two retaining spacers installed respectively between the two supports of bell-shaped suspension elements and the cross member. These retaining struts are intended to retain the supports during a frontal impact and prevent them from intruding into the passenger compartment.
- WO201 1/1 13550 which describes such an arrangement.
- the two longitudinal members are comparatively close to each other with respect to the bell-shaped suspension element supports spaced from one another, and therefore, when they deform, their movement tends to inducing forces that apply to the inner face of the bell-shaped suspension element supports substantially tangentially.
- a frontal impact also causes the movement of the bell-shaped support members along a vertical axis and away from the chassis.
- a problem that arises and that aims to solve the present invention is to provide a motor vehicle structure that allows to better stabilize the supports of bell-shaped suspension elements relative to the body, during a frontal impact.
- the present invention provides a motor vehicle structure comprising a front compartment having side walls, and a passenger compartment separated from said front compartment by an apron, said deck having a rigid cross member, said structure comprising two support elements of suspension elements.
- bell-shaped housed inside said front compartment near said apron, and respectively adjacent to said side walls, said bell-shaped suspension element supports each having an inner face opposite to the side wall, said structure further comprising spacers; extending respectively between said bell-shaped suspension element supports and said rigid cross-member, in a substantially longitudinal direction. Said spacers are respectively anchored in the inner faces of said two supports of bell-shaped suspension elements.
- a feature of the invention lies in the anchoring of the spacers in the inner faces of the supports so as to prevent the rotation of the supports, caused by the depression of the side members, during a frontal impact. In this way, their lateral movement is limited relative to the body during the shock. In addition, and as will be explained in detail in the following description, the spacers also limit their vertical movement.
- said bell-shaped suspension element supports have a cup-shaped upper portion, respectively, and said spacers are anchored at said cups.
- the spacers come to take up the efforts at the level of the most rigid part of the supports of suspension elements in bell.
- the cups receive the suspension elements directly from the inside of the supports. Therefore, a portion of the forces transmitted by the suspension elements is taken up by the spacers and therefore by the cross of the deck.
- said bell-shaped suspension element supports are respectively integral with said side walls.
- the bell-shaped suspension element supports are maintained not only at their inner side but also at their opposite side by the side walls of the front compartment. This double retention in a fixed position relative to the body allows a better hold of the supports of suspension elements bell during a frontal impact.
- said spacers each have a rim formed into a skirt adapted to be applied to said supports of bell-shaped suspension elements.
- this skirted edge which has a form of cooperation with the supports, it provides a better bonding of the spacer and supports.
- said spacers each advantageously have a folded edge extending between a free end and an opposite fixing end adapted to be connected to said cross member. In addition to its attachment role, the folded edge stiffens the spacer.
- said spacers have, preferably, a substantially triangular central portion interconnecting said folded edge and skirted edge. In this way, the two opposite edges of the spacer, respectively formed by the folded edge and the skirted edge, stiffens it and limit its deformation during an impact.
- said folded edge of said spacer has a curved portion located towards said free end, extending substantially perpendicularly to said skirted edge. In this way, a maximum stiffening of the spacer is obtained.
- said folded edge has, towards said attachment end, another curved portion extending in a plane substantially perpendicular to that defined by said curved portion located towards said free end.
- said fixing end has a pierced tongue extending substantially perpendicularly to said curved portion.
- the pierced tongue is then connected flat to the cross member of the deck by means of a screwed member.
- the tongue is not pierced, and it is welded to the cross of the deck.
- said spacers are formed of a single stamped metal part.
- the spacers are thus obtained at an advantageous cost.
- said struts respectively extending between said two bell-shaped suspension element supports and said cross-member are imaged from each other in a mirror. In this way, the spacers are symmetrical to one another with respect to a median plane.
- FIG. 1 is a partial schematic perspective view of three quarters front right of a motor vehicle structure according to the invention.
- Figure 2 is a schematic detail view of Figure 1;
- Figure 3 is a schematic longitudinal sectional view of the elements shown in Figure 2;
- FIG. 4 is a schematic top view of an element illustrated in the preceding figures.
- FIG. 5 is a schematic side view along the arrow V of the element shown in Figure 4.
- the longitudinal direction corresponds to the classic front-rear orientation of the vehicle.
- the transverse direction is perpendicular to this longitudinal orientation.
- the vertical direction is perpendicular to the longitudinal and transverse directions.
- FIG. 1 partially illustrates the front of a motor vehicle structure 10 according to the invention.
- the structure 10 comprises a front compartment 12 and a passenger compartment 14 separated from each other by an apron 16.
- the front compartment 12 has two side walls, a left side wall 17 opposite a right side wall 19.
- the apron 16 has a rigid upper cross member 18 which extends transversely.
- the structure 10 has two spars, a right spar 20 and a left spar 22 which extend in a longitudinal direction of the vehicle under the front compartment 12.
- the longitudinal members 20, 22 extend, overhanging, bell-shaped suspension element supports, a right support 24 and a left support 26.
- the left support of bell-shaped suspension elements 26 has a left inner face 28 and an opposite outer face, hidden in FIG.
- the bell-shaped suspension element supports 24, 26 are symmetrical to each other with respect to a longitudinal and vertical plane extending between the longitudinal members 20, 22.
- Straight support of bell-shaped suspension elements 24 has a straight inner face 30 which extends opposite the left-hand inner face 28 of the left-hand support of bell-shaped suspension elements 26.
- it has an outer face opposed integral with the right side wall 19 of the front compartment 12.
- each of the bell-shaped suspension members 24, 26 is connected to the rigid upper cross member 18 by means of a retaining spacer, a left-hand spacer 32 for the left-hand support 26 and a straight-brace 34 for the support. right 24.
- FIG. 2 showing in detail the left spacer 32 installed between the rigid high cross member 18 of the apron 16 and the left support of bell-shaped suspension elements 26.
- the latter has its face left inside 28 and it further has an upper portion 36 forming a cup.
- This upper portion 36 forming a cup is intended to receive support, from inside the support of bell-shaped suspension elements 26, precisely, elements of the suspension, including elastic members, spring and damper.
- the left spacer 32 is anchored in the left inner face 28 of the support 26 at the upper portion 36 forming a cup.
- the inner left face 28 has at the intersection with the upper portion 36 forming a cup, a substantially cylindrical edge 38, while the spacer 32 has, it, a lower edge formed in a skirt 40 which comes in shape cooperation s apply perfectly against a portion of the substantially cylindrical edge 38.
- the skirt border 40 of the spacer 32 extends downwards.
- the spacer 32 has a folded edge 42 having in its rear portion an attachment end 44 provided with a pierced tongue 46 and an opposite free end 48.
- the folded edge 42 is located in an upper region of the spacer 32. It will be observed that the folded edge 42 has a first curved portion 47 which extends substantially perpendicular to the edge formed in skirt 40 at the left inner face 28.
- the folded edge 42 has a second curved portion, which extends between the first curved portion 47 and the attachment end 44, and whose average plane it defines is substantially perpendicular to that defined by the first curved portion 47.
- the pierced tongue 46 of the fixing end 44 allows the attachment by means of a member screwed on the crosspiece 18.
- the pierced tongue 46 is directed substantially vertically and transversely. It is applied against a front face of the rigid high cross member 18 of the apron 16. According to another embodiment, it is intended to weld the non-pierced tongue by cords or points.
- edge formed in skirt 40 it is made integral with the left support of bell-shaped suspension elements 26, for example by means of a weld seam or even of welding points. In another mode embodiment, not shown, it is intended to fix the edge formed in skirt 40 by means of screws or rivets.
- Figures 4 and 5 illustrate in detail the left spacer 32 according to two different angles of view.
- Figure 4 illustrates in detail the left spacer 32 seen from above.
- the folded edge 42 which extends in double curvature, between its fixing end 44 and its free end 48, and the edge formed in skirt 40 which extends substantially perpendicular to the first curved portion 47 of the folded edge 42.
- the left spacer 32 is made in one piece stamped in a metal material, for example steel.
- the left-hand spacer 32 is seen from the side and there is found the edge formed in skirt 40 and the folded edge 42.
- the two edges 40, 42 are then connected together by a substantially triangular central portion 50 so as to only form one piece.
- the generally triangular general shape is visible mainly in a view corresponding to the arrow V of Figure 5, that is to say to a view transverse to the vehicle.
- the folded edge 42 is located along an upper side of the triangle.
- the skirt rim 40 forms a lower side of the triangle having a curved shape that conforms to the inner face 28 of the suspension member support.
- the skirt border 40 is curved in a substantially horizontal plane to conform to the convex shape of this inner face 28.
- a third side of the triangle located at the back is applied against the apron 16.
- the folded edge 42 is directed towards the inner side of the engine compartment, in a direction transverse to the vehicle.
- This folded edge ends at the rear by the fastening end 44 provided with the pierced tongue 46.
- the third side of the triangle located at the rear of the central portion 50 has a conformation directed towards the adjacent outer side of the vehicle, considered in a direction transverse to the vehicle, this conformation bearing on the front wall of the apron 16.
- This conformation is thus directed away from the folded edge 42 which is directed towards the side inside the vehicle, ie towards the engine compartment.
- the efforts are therefore distributed on both sides of the portion central, on the one hand on the upper rail 18 apron, and on the other hand to the deck 16. It is recalled that the deck is a structural partition separating the engine compartment and the passenger compartment.
- the substantially triangular central portion 50 has a main rib 52 substantially parallel to the folded edge 42 in its portion located towards the fixing end 44.
- a main rib 52 makes it possible to stiffen the left-hand spacer 32.
- the thickness of the spacer can be adapted according to the desired resistance to deformation. Thus, without additional space, it is easy to modulate the resistance to deformation of the spacer, and hence the impact resistance.
- the rigid high cross member 18 has a U-shaped straight profile whose rabbet extends in a direction opposite to the front compartment 12, so as to increase the stiffness in case of impact.
- the left-hand spacer 32 and its cooperation with the left support of bell-shaped suspension elements 26 and the cross-member 18 have been described in detail above.
- the arrangement of the right-hand spacer 34 in cooperation with the right support bell-shaped suspension elements 24 and the crossmember 18 is symmetrical with respect to the longitudinal and vertical plane extending between the longitudinal members 20, 22 shown in FIG.
- a force Ef is exerted longitudinally on the longitudinal members 20, 22.
- the impacts of such a force will be described on the left side of the structure 10, for the sake of clarity. However, the impacts are identical on the right side. So, this effort can have two impacts.
- the spar 22 is integral with the left support of bell-shaped suspension elements 26, and more precisely of its left-hand inner face 28.
- the left-hand support of bell-shaped suspension elements 26 is itself integral with the left-hand side wall. 17 of the front compartment 12, by its outer face opposite to the inner face 28. Therefore, the effort Ef exerted longitudinally on the left spar 22 will tend to exert a torque R around a vertical axis on the left support of suspension elements bell 26.
- the left spacer 32 fixed on the rigid upper cross member 18 and anchored precisely on the left inner face 28 at the upper portion 36 forming a cup, and opposite on the outside, the rotation of the left support of bell-shaped suspension elements 26 is precisely prevented. Therefore, its intrusion into the cabin is also prevented and the compression of the spar is stabilized in its longitudinal axis.
- the space requirement of the spacers 32, 34 is modest, and in this way, it is easier to carry out sealing work and in particular the use of putty or the preservation of surfaces against corrosion.
- the upper portion 36 forming a cup is left free, which allows to rib. As a result, endurance resistance is obtained equivalent to that of a non-ribbed and thicker upper part. In this way, an appreciable gain in mass is obtained.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Body Structure For Vehicles (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1453032A FR3019517B1 (fr) | 2014-04-04 | 2014-04-04 | Structure de vehicule automobile renforcee |
PCT/FR2015/050791 WO2015150669A1 (fr) | 2014-04-04 | 2015-03-27 | Structure de vehicule automobile renforcee |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3126209A1 true EP3126209A1 (de) | 2017-02-08 |
EP3126209B1 EP3126209B1 (de) | 2018-05-02 |
Family
ID=50933389
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15717041.6A Active EP3126209B1 (de) | 2014-04-04 | 2015-03-27 | Verstärkte kraftfahrzeug struktur |
Country Status (4)
Country | Link |
---|---|
US (1) | US9919745B2 (de) |
EP (1) | EP3126209B1 (de) |
FR (1) | FR3019517B1 (de) |
WO (1) | WO2015150669A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018154305A (ja) * | 2017-03-21 | 2018-10-04 | トヨタ自動車株式会社 | 車両前部構造 |
US10899109B2 (en) | 2019-03-11 | 2021-01-26 | Honda Motor Co., Ltd. | Multi-material joint and method of making thereof |
US10953930B2 (en) | 2019-03-26 | 2021-03-23 | Honda Motor Co., Ltd. | Damper housing assembly |
US11390326B2 (en) | 2020-06-05 | 2022-07-19 | Honda Motor Co., Ltd. | Vehicle front body structure |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3188132A (en) * | 1964-07-16 | 1965-06-08 | Ford Motor Co | Motor vehicle front end structure |
JPH11180343A (ja) * | 1997-12-18 | 1999-07-06 | Daihatsu Motor Co Ltd | 自動車のフロントボデイ構造 |
JP4424208B2 (ja) | 2005-01-17 | 2010-03-03 | トヨタ自動車株式会社 | 車体の前部構造 |
EP1834862B1 (de) * | 2006-03-15 | 2010-05-05 | Mazda Motor Corporation | Vorderwagenaufbau eines Kraftfahrzeuges |
DE102007024565A1 (de) * | 2007-05-25 | 2008-02-07 | Daimler Ag | Vorrichtung zum Aufnehmen von Crashkräften an einem Kraftfahrzeug |
DE102009036495A1 (de) * | 2009-08-07 | 2011-02-10 | Audi Ag | Rohbauteil eines Rohbaus für eine Fahrzeugkarosserie und Rohbau einer Fahrzeugkarosserie |
DE102010011320A1 (de) | 2010-03-13 | 2011-09-15 | Volkswagen Ag | Vorderwagen eines Fahrzeugs |
FR2985458A1 (fr) * | 2012-01-09 | 2013-07-12 | Peugeot Citroen Automobiles Sa | Dispositif de fixation pour fixer un ensemble mecanique a une structure de caisse de vehicule optimisant performances choc et vibratoire |
DE102012208903B4 (de) * | 2012-05-25 | 2022-05-05 | Bayerische Motoren Werke Aktiengesellschaft | Kraftfahrzeug |
-
2014
- 2014-04-04 FR FR1453032A patent/FR3019517B1/fr not_active Expired - Fee Related
-
2015
- 2015-03-27 EP EP15717041.6A patent/EP3126209B1/de active Active
- 2015-03-27 US US15/301,850 patent/US9919745B2/en active Active
- 2015-03-27 WO PCT/FR2015/050791 patent/WO2015150669A1/fr active Application Filing
Also Published As
Publication number | Publication date |
---|---|
FR3019517A1 (fr) | 2015-10-09 |
WO2015150669A1 (fr) | 2015-10-08 |
FR3019517B1 (fr) | 2018-03-23 |
US9919745B2 (en) | 2018-03-20 |
EP3126209B1 (de) | 2018-05-02 |
WO2015150669A8 (fr) | 2017-01-12 |
US20170183040A1 (en) | 2017-06-29 |
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